1//===-- RegisterContextFreeBSD_i386.cpp ------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===---------------------------------------------------------------------===//
9
10#include "RegisterContextPOSIX_x86.h"
11#include "RegisterContextFreeBSD_i386.h"
12
13using namespace lldb_private;
14using namespace lldb;
15
16// http://svnweb.freebsd.org/base/head/sys/x86/include/reg.h
17struct GPR
18{
19    uint32_t fs;
20    uint32_t es;
21    uint32_t ds;
22    uint32_t edi;
23    uint32_t esi;
24    uint32_t ebp;
25    uint32_t isp;
26    uint32_t ebx;
27    uint32_t edx;
28    uint32_t ecx;
29    uint32_t eax;
30    uint32_t trapno;
31    uint32_t err;
32    uint32_t eip;
33    uint32_t cs;
34    uint32_t eflags;
35    uint32_t esp;
36    uint32_t ss;
37    uint32_t gs;
38};
39
40struct dbreg {
41    uint32_t  dr[8];     /* debug registers */
42                         /* Index 0-3: debug address registers */
43                         /* Index 4-5: reserved */
44                         /* Index 6: debug status */
45                         /* Index 7: debug control */
46};
47
48
49#define DR_SIZE sizeof(uint32_t)
50#define DR_OFFSET(reg_index) \
51    (LLVM_EXTENSION offsetof(dbreg, dr[reg_index]))
52
53//---------------------------------------------------------------------------
54// Include RegisterInfos_i386 to declare our g_register_infos_i386 structure.
55//---------------------------------------------------------------------------
56#define DECLARE_REGISTER_INFOS_I386_STRUCT
57#include "RegisterInfos_i386.h"
58#undef DECLARE_REGISTER_INFOS_I386_STRUCT
59
60RegisterContextFreeBSD_i386::RegisterContextFreeBSD_i386(const ArchSpec &target_arch) :
61    RegisterInfoInterface(target_arch)
62{
63}
64
65RegisterContextFreeBSD_i386::~RegisterContextFreeBSD_i386()
66{
67}
68
69size_t
70RegisterContextFreeBSD_i386::GetGPRSize()
71{
72    return sizeof(GPR);
73}
74
75const RegisterInfo *
76RegisterContextFreeBSD_i386::GetRegisterInfo()
77{
78    switch (m_target_arch.GetCore())
79    {
80        case ArchSpec::eCore_x86_32_i386:
81        case ArchSpec::eCore_x86_32_i486:
82        case ArchSpec::eCore_x86_32_i486sx:
83            return g_register_infos_i386;
84        default:
85            assert(false && "Unhandled target architecture.");
86            return NULL;
87    }
88}
89